It is impossible to fire any firearm “accidentally”. It is always and only neglect and incompetence, at the very least.
There may be some extremely rare instances of material failure or defect that result in an accidental discharge. Even in those cases, there may be negligence if it was not detected during normal routine maintenance and inspection. But such situations are truly very rare, and even when they do occur, other safe firearm handling practices will still generally preclude injury.
Apart from that, I agree completely. The overwhelming majority of firearm, "accidents," aren't accidents at all, and if you backtrack on the sequence of events leading up to the, "accident," you will almost invariably find more than two or three instances of incompetence, inexperience or ignorance that would otherwise have preempted the, "accident."
It is impossible to fire any firearm “accidentally”. It is always and only neglect and incompetence, at the very least.
I guess I count that as incompetence.